- Sinus infections are one of the most common conditions treated by antibiotics and affect many people in the United States each year.
- Also called sinusitis, sinus infections refer to inflammation and swelling in the tissues of your sinuses.
- Common sinus infection symptoms include nasal congestion, fatigue, facial pressure, and postnasal drip.
Sinus infections affect over 11.6-percent of adults in the United States per year, but this diagnosis is different from a cold or allergies. Often caused by viruses and persisting for weeks, sinus infections can have many uncomfortable symptoms and lead to chronic issues or complications if left untreated.
Keep reading to learn more about sinus infections and the various causes, symptoms, and treatments. We’ll also look into what preventative measures you can take.
What Is Sinusitis?
A sinus infection, also known as sinusitis or rhinosinusitis, occurs when the tissue that lines the sinuses becomes inflamed and swollen. Usually caused by a virus, sinusitis can have symptoms that last long after other respiratory symptoms are gone.
Your sinuses consist of four cavities around your eyes, nose, cheeks, and forehead that produce mucus to keep your nasal passages moist and filter pollutants, allergens, and dust. When sinuses are inflamed and swollen, they become blocked with fluid. This blockage allows bacteria to grow and cause infections.